是啥导致 weka 中的 csv 加载错误？

Posted 2023-02-23

【中文标题】是啥导致 weka 中的 csv 加载错误？

【英文标题】：What is causing a csv load error in weka?是什么导致 weka 中的 csv 加载错误？

【发布时间】：2021-12-27 04:35:58

【问题描述】：

尝试在 Weka 版本 3.8.5 中打开 CSV 文件时收到以下错误

文件未被识别为“CSV 数据文件”文件原因：编号错误 的价值观。读取 2，预期 12，读取 Token [EOL]，第 2 行问题 在第 2 行遇到

我已阅读此站点上类似错误的解决方案，但似乎无法找到我的特定文件有什么问题。但是，作为一个非常新手的weka用户，这可能只是我对这个问题的误解。有人可以看看下面的示例 csv 数据，如果您看到我不理解或遗漏的内容，请告诉我？

LossMonth,LossYear,ClaimNumber,PolicyNumber,ClaimBranch,Agency,LocationCounty,CATCode,CauseCode,IncurredLoss,CurrentReserves,"
City",State,ZIPCODE,"
COLLISIONTYPECD","
CLOSEDDT",DaystoCLose,"
FATALITYCNT","
FATALITYIND","
FAULTRATINGIND","
AUTOGLASSIND","
DEERLOSSIND","
WEATHERRELATEDIND","
POLICYTIERCD",ClaimStatus,AgencyHandled,VEHICLEYEAR,DRIVERRELATIONTOINSUREDDESC,TOTALLOSSIND,INSURANCESCORE,Age
10,2016,4125858,20169200,4,113,73,1,comp,2525,0,PADUCAH,KY,42001,x,42692,18,0,0,0,0,0,1,70,1,0,2004,Other third party,0,703,73
1,2018,4265645,20137828,13,106,37,1,hail,3164,0,BAGDAD,KY,40003,x,43214,88,0,0,0,0,0,0,50,1,0,2010,Named Insured,1,799,63
12,2016,4136759,20322058,5,105,105,1,hail,2547,0,GEORGETOWN,KY,40324,x,42713,2,0,0,0,0,0,0,10,1,0,2010,Named Insured,0,999,68
1,2016,4033032,20175699,13,106,106,1,comp,15327,0,SIMPSONVILLE,KY,40067,x,42469,73,0,0,0,0,0,1,80,1,0,2000,Named Insured,1,999,34
9,2016,4116782,20133146,2,115,115,1,wind,7529,0,SPRINGFIELD,KY,40069,x,42649,8,0,0,0,0,0,0,10,1,0,2003,Named Insured,0,783,47
2,2016,4038442,20170355,7,148,10,1,hail,3631,0,ASHLAND,KY,41101,x,42417,1,0,0,0,0,0,0,50,1,0,2010,Named Insured,0,778,42
2,2016,4039439,20218265,7,45,10,1,hail,3579,0,FLATWOODS,KY,41139,x,42444,25,0,0,0,0,0,0,40,1,0,2013,Named Insured,0,820,52
2,2016,4039440,20218265,7,45,10,1,hail,570,0,FLATWOODS,KY,41139,x,42422,3,0,0,0,0,0,0,40,1,0,2012,Named Insured,0,820,52
3,2018,4275810,20126522,15,40,40,1,hail,3747,0,LANCASTER,KY,40444,x,43216,55,0,0,0,0,0,0,10,1,0,2009,Named Insured,1,999,74
5,2016,4071936,20461965,15,40,40,1,hail,525,0,LANCASTER,KY,40444,x,42521,7,0,0,0,0,0,0,50,1,0,2006,Named Insured,0,999,68
3,2016,4046685,20226270,7,35,35,1,hail,3558,0,FLEMINGSBURG,KY,41041,x,42447,2,0,0,0,0,0,0,80,1,0,2012,Named Insured,0,842,69
4,2016,4055942,20439287,7,35,35,1,hail,2551,0,EWING,KY,41039,x,42475,1,0,0,0,0,0,0,70,1,0,2006,Named Insured,0,867,48
1,2016,4026514,20394097,7,148,10,1,hail,1350,0,ASHLAND,KY,41101,x,42376,3,0,0,0,0,0,0,40,1,0,2007,Named Insured,0,637,65
3,2016,4047152,20212062,15,141,76,1,hail,1739,0,BEREA,KY,40403,x,42473,27,0,0,0,0,0,0,80,1,0,2008,Named Insured,0,777,77
2,2016,4035512,20103029,15,40,40,1,hail,2008,0,LANCASTER,KY,40444,x,42405,1,0,0,0,0,0,0,0,1,0,2000,Named Insured,1,885,72
1,2016,4030456,20385643,15,120,40,1,hail,1497,0,LANCASTER,KY,40444,x,42450,62,0,0,0,0,0,0,20,1,0,2013,Named Insured,0,839,65
4,2016,4053299,20251610,5,69,11,1,hail,1535,0,DANVILLE,KY,40422,x,42514,48,0,0,0,0,0,0,100,1,0,2013,Insured,0,999,64
6,2016,4076264,20337992,17,140,1,1,hail,1799,0,MILLTOWN,KY,42728,x,42529,2,0,0,0,0,0,0,50,1,0,2002,Named Insured,0,999,84
8,2017,4217498,20596983,8,86,86,1,hail,660,0,TOMPKINSVILLE,KY,42167,x,42954,0,0,0,0,0,0,0,100,1,0,2012,Named Insured,0,999,45
1,2016,4026053,20511114,4,113,113,1,hail,1310,0,STURGIS,KY,42459,x,42376,3,0,0,0,0,0,0,100,1,0,2003,Named Insured,0,694,44
1,2016,4026766,20656586,4,113,113,1,hail,2360,0,MORGANFIELD,KY,42437,x,42383,9,0,0,0,0,0,0,20,1,0,2010,Named Insured,0,999,89
1,2016,4027473,20085251,6,42,42,1,hail,1699,0,MAYFIELD,KY,42066,x,42381,5,0,0,0,0,0,0,90,1,0,2008,Named Insured,0,747,50
1,2016,4029284,20167051,17,109,109,1,wind,3133,0,CAMPBELLSVILLE,KY,42718,x,42387,5,0,0,0,0,0,0,10,1,0,1993,Named Insured,0,886,78
1,2016,4031937,20326278,3,81,12,1,comp,3385,0,FOSTER,KY,41043,x,42402,8,0,0,0,0,0,1,40,1,0,2003,Named Insured,0,723,79
1,2016,4027931,20339366,8,107,107,1,wind,5858,0,FRANKLIN,KY,42134,x,42447,70,0,0,0,0,0,0,20,1,0,2014,Named Insured,0,940,80
1,2016,4028456,20453076,15,87,87,1,comp,2056,0,JEFFERSONVILLE,KY,40337,x,42387,7,0,0,0,0,0,1,100,1,0,2013,Named Insured,0,999,51
1,2016,4028597,20051661,4,113,113,1,hail,5320,0,WAVERLY,KY,42462,x,42712,332,0,0,0,0,0,0,20,1,0,2014,Named Insured,0,717,58
3,2016,4046687,20018268,6,42,42,1,hail,2736,0,MAYFIELD,KY,42066,x,42450,5,0,0,0,0,0,0,110,1,0,2012,Named Insured,0,735,73
9,2016,4116499,20128172,3,96,59,1,glss,320,0,TAYLOR MILL,KY,41015,x,42660,20,0,0,0,0,0,1,0,1,0,1997,Spouse,0,923,81
1,2016,4026247,20086164,4,113,113,1,hail,1611,0,MORGANFIELD,KY,42437,x,42376,3,0,0,0,0,0,0,10,1,0,2013,Named Insured,0,902,61
1,2016,4027222,20033936,6,79,79,1,glss,105,0,CALVERT CITY,KY,42029,x,42389,14,0,0,0,0,0,1,110,1,0,2001,Named Insured,0,772,57
1,2016,4028311,20059964,4,75,75,1,comp,1040,0,SACRAMENTO,KY,42372,x,42382,2,0,0,0,0,0,1,10,1,0,1996,Named Insured,0,999,64
1,2016,4029164,20541039,6,42,42,1,wind,1495,0,SEDALIA,KY,42079,x,42382,0,0,0,0,0,0,0,0,1,0,2008,Named Insured,0,756,67
1,2016,4027475,20085251,6,42,42,1,hail,940,0,MAYFIELD,KY,42066,x,42381,5,0,0,0,0,0,0,90,1,0,2013,Named Insured,0,747,50
1,2016,4030356,20007300,4,117,117,1,hail,6550,0,DIXON,KY,42409,x,42436,49,0,0,0,0,0,0,40,1,0,2009,Named Insured,0,864,34

【问题讨论】：

我没有使用过weka，但根据EOL 参考，第一行后10行的换行可能是问题/麻烦吗？看起来那些列名没有空格，所以可能不需要引号？

【参考方案1】：

Weka 的 CSVLoader 无法处理跨多行的行（尽管有引号）。一旦你的所有行（标题和数据）每行一个，你应该没问题。

common-csv（非官方）Weka 包应该能够处理跨多行的行。

【讨论】：

一旦我删除了所有标题标题中的前导空格，它们就减少到了一行。打开时我不再收到错误。